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Mirrors > Home > ILE Home > Th. List > funcnveq | Unicode version |
Description: Another way of expressing that a class is single-rooted. Counterpart to dffun2 5133. (Contributed by Jim Kingdon, 24-Dec-2018.) |
Ref | Expression |
---|---|
funcnveq |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relcnv 4917 | . . 3 | |
2 | dffun2 5133 | . . 3 | |
3 | 1, 2 | mpbiran 924 | . 2 |
4 | alcom 1454 | . 2 | |
5 | vex 2689 | . . . . . . 7 | |
6 | vex 2689 | . . . . . . 7 | |
7 | 5, 6 | brcnv 4722 | . . . . . 6 |
8 | vex 2689 | . . . . . . 7 | |
9 | 5, 8 | brcnv 4722 | . . . . . 6 |
10 | 7, 9 | anbi12i 455 | . . . . 5 |
11 | 10 | imbi1i 237 | . . . 4 |
12 | 11 | 2albii 1447 | . . 3 |
13 | 12 | albii 1446 | . 2 |
14 | 3, 4, 13 | 3bitri 205 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wal 1329 class class class wbr 3929 ccnv 4538 wrel 4544 wfun 5117 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-fun 5125 |
This theorem is referenced by: imain 5205 |
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